Coastal Flood Advisory
Coastal Hazard Message
National Weather Service Mount Holly NJ
415 PM EDT Wed Aug 20 2025
DEZ001-NJZ016-211100-
/O.NEW.KPHI.CF.Y.0019.250822T0100Z-250823T0600Z/
New Castle-Salem-
415 PM EDT Wed Aug 20 2025
...COASTAL FLOOD ADVISORY IN EFFECT FROM 9 PM THURSDAY TO 2 AM
EDT SATURDAY...
* WHAT...Up to one foot of inundation above ground level
expected in low-lying areas near shorelines and tidal
waterways.
* WHERE...In Delaware, New Castle. In New Jersey, Salem.
* WHEN...From 9 PM Thursday to 2 AM EDT Saturday.
* IMPACTS...At this level, flooding begins on the most vulnerable
roads along tidal waterways. Some partial or full road closures
are possible.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A Coastal Flood Advisory means that minor tidal flooding is
expected. Minor tidal flooding often results in some road
closures. Usually, the most vulnerable roadways will flood.
Do not leave your vehicle at a location that is prone to tidal
flooding. Do not drive your vehicle through flood waters. The
water may be deeper than you think it is. You will be putting
yourself in danger and your vehicle may be damaged, leading to
costly repairs.
Visit the Advanced Hydrologic Prediction Service at
water.weather.gov/ahps for additional water level and flood
impact information for your local tide gauge.
&&
Time of high total tides are approximate to the nearest hour.
Delaware River at Reedy Point
MLLW Categories - Minor 7.2 ft, Moderate 8.2 ft, Major 9.2 ft
MHHW Categories - Minor 1.4 ft, Moderate 2.4 ft, Major 3.4 ft
Total Total Departure
Day/Time Tide Tide from Norm Flood
ft MLLW ft MHHW ft Impact
-------- --------- --------- --------- --------
20/10 PM 7.2 1.4 1.0 Minor
21/10 AM 6.4 0.6 1.1 None
21/11 PM 7.9 2.1 1.6 Minor
22/11 AM 7.4 1.6 1.9 Minor
22/11 PM 8.1 2.3 1.9 Minor
23/12 PM 7.1 1.3 1.5 None
&&
$$
Hoeflich
